Adjustable trace-holder



(NOModeL) y J. H. BARKER.

Adjustable Trace Holder.

Patented March 29,1881.

UNITED STATES A PATENT OFFICE.

JOSEPH H. BARKER, OF CINCINNATI, OHIO.

ADJUSTABLE TRACE-HOLDER.

SPECIFICATION forming part of Letters Patent No. 239,421, dated March 29, 1881.

Application filed November 22, 1880.

To all whom it may concern:

Be it known that I, J osnrn H. BARKER, a a citizen-of the United States, residing at Cincinnati, Ohio, have invented new and usefublmprovemen'ts in Adjustable Trace-Holders, of which the following is a specification.

My invention relates to adjustable traceholders used with plow-harness and in similar connections; and its objectis to produce an economical article and one more convenient of use in adjusting the back-band connections, as required.

This invention consists in a novel. construction. of the frame of the trace-holder, and the improvements will be fully hereinafter described, and specifically pointed out in the claim.

My invention is embodied in mechanism illustrated in the accompanying drawings, in which- Figure l is a plan view of my invention complete. Fig. 2 is a vertical section, and Fig. I

the hook for the convenient attachment of a ring (usually of considerable size) by which the trace-chain or supporting-link is held upon the hook h. About midway of the frame A is a crossbar, a, which in use serves as and arrangement of parts that the edge of the.

plate B has a cam-movement in relation to the cross-bar a, such as to compress and hold the band 0 when the parts are in position, as shown in Fig. 2; and that the band may be (No model.)

disengaged very conveniently by simply raising the tongues B, which moves back the clamp B; but when closed the pull of the band tightens the clamp and holds it secure, the tongues B serving as stops to its movement.

It will also be observed from the position of the parts that the web of the band is not likely to be torn or cut by the serrated edge, as the serrations do not act as hooks or teeth engaging only the surface-threads of the web, as in construction formerly used, but clamp and compress the entire body of the material and, further, that the movable clampingplate enables the adjustment to be far more expeditiously and accurately effected than where the band is simply drawn over and upon hooks or teeth upon a fixed bar in relation to which the band has to be drawn back again to sink the teeth into the web.

The upper cross-bar, a, of the frame maybe entirely dispensed with, as its only office is to aid slightly in holding the entire device flat upon the web, whereit naturally remains with out such aid.

It is obvious, also, that the serrations in the edge of the plate B may be omitted and a straight edge employed. 7

In the manufacture of the device I cast the frame A, with its cross-bars a and side lugs, d, in one piece, and the plate 13, with its pivots b and tongues B, in another, both preferably ofmalleable iron, which are then connected and are ready for use without further manipulation.

Having described myinvention, Iclaim and desire to secure by Letters Patent- A trace-holder consisting of the open frame A, provided with the side supports, (1, the cross-bar a, and the downwardly-bowed bar a provided with the central curved hook, h,

Witnesses:

O. P. DOOLITTLE,

L. M. HOSEA. 

